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Table 1 Basic characteristics at baseline for all patients and for patients with more than one substance use measurement (numbers (n) and percentages (%))

From: Changes in substance use during outpatient treatment for substance use disorders: a prospective Norwegian cohort study from 2016 to 2020

 

All

patients

(N = 708)

Patients with

> 1 substance use measurement

(N = 171)

Age (years), n (%)

 18–30

84 (12)

11 (6)

 30–40

204 (29)

43 (25)

 40–50

215 (30)

57 (33)

 50–60

164 (23)

47 (27)

 ≥ 60

41 (6)

13 (8)

 Mean (SD)

43 (11)

46 (10)

Gender, n (%)

 Male

514 (73)

130 (76)

 Female

194 (27)

41 (24)

Highest education level, n (%)

 Not completed primary school

39 (6)

11 (6)

 Completed primary school (9 years)

306 (44)

77 (45)

 Completed high school (12 years)

277 (40)

66 (39)

 ≤ 3 years of college or university

58 (8)

< 15 (< 10)

 > 3 years of college or university

14 (2)

< 15 (< 10)

Injected substances during the past 6 months, n (%)

384 (54)

82 (48)

Unstable housing situation during the past 30 daysa, n (%)

86 (12)

5 (4)

Substance use during the past 12 monthsb, n (%)

 Alcohol

513 (72)

113 (66)

 Benzodiazepines

489 (69)

126 (74)

 Cannabis

537 (76)

133 (78)

 Opioids

344 (49)

75 (44)

 Stimulants (amphetamines and cocaine)

451 (64)

103 (60)

Inpatient detoxification, n (%)

35 (20)

Received OAT, n (%)

553 (78)

166 (97)

Received municipality care, n (%)

155 (22)

5 (3)

Comorbidities, n (%)

 Hepatitis C virus infection

349 (60)

89 (57)

 Hepatitis B virus infection

5 (< 1)

< 5 (< 5)

 Human immunodeficiency virus infection

< 5 (< 5)

< 5 (< 5)

  1. SD Standard deviation
  2. aAn unstable housing situation was defined as living in a homeless shelter or with family or friends at any time during the past 30 days. Having owned or rented housing situation or being imprisoned were defined as a stable housing situation
  3. bThe number of patients who have used substances at least once during the past 12 months